Quality Diesel Parts Without The OEM Pricing

It doesn’t matter if it’s your truck or your customers, when you need quality diesel parts, at prices that won’t break the bank, turn to Area Diesel Service. We’ve got your back!

Featured Brands

We carry many of the top brands in the industry...in stock and ready to ship!


Area Diesel has been a leading provider of parts and service to the diesel industry since 1973!

Established in 1973, our diesel repair and performance truck products shop has grown from a tiny, one-man show into a thriving national operation. In the early 70s, Val Leefers discovered his passion and talent for innovative diesel performance upgrades that improve fuel injection systems and repairing diesel pumps. After honing his diesel repair skills, Val built a small building just outside Carlinville, Illinois; bought $1300 in inventory; and hung out his shingle. Area Diesel Service was open for business, though business wasnt exactly booming. Val sweated out the rough early years the only way he was fit - by establishing innovative diesel performance that saves customers money over the long haul and by providing dedicated, honest service. Remaining true to those core values to this day, Area Diesel has earned its place as a leader in the Midwest diesel market and later looked to expand on that success. As Area Diesel Service solidified our reputation for providing innovative diesel performance through quality parts and service, both our building and our team began to grow. The Carlinville diesel repair shop has continually expanded to accommodate our passion for innovation. Today, the building boasts extensive space and the latest performance truck products and equipment for our diesel fuel injection department, turbo department, warehouse, and state-of-the-art machine shop - for custom updates and repairs on intricate diesel engines and components. In 1984, we opened a second location outside of Des Moines, Iowa, letting our team serve diesel owners west of the Mississippi. The Iowa branch underwent an expansive overhaul, equipping our experts with all they need for diesel repair and performance upgrades on nearly any diesel engine. In early 2017, we opened our third location in Indianapolis, Indiana, giving our customers on the eastern fringe of the Midwest an opportunity to experience Area Diesels quality products and customer service in person. Area Diesel now has upward of 50 full-time employees, including factory trained diesel technicians. Collectively, we still honor the principles Val built the company on - dedication to improving diesel performance through hard work, honesty, ongoing development of technical skills, and quality diesel performance products. And we cannot forget one of Vals most valued rules: Always go the extra distance to ensure customer satisfaction!


Red Poppy Ranch and ADS Collaboration VideoTractor Time with Time Johnny X Collaboration VideoWatch Wes Work Collaboration VideoMechanical Injector Repair Collaboration with Watch Wes Work


Area Diesel is the #1 source for quality diesel parts!

Whether you’re an owner operator or a fleet, a small independent repair shop or a chain, Area Diesel has the parts you need at prices you can afford!

From custom performance parts to hard to find vintage items, Area Diesel stocks the parts you need to keep your engine running at its best. Turbochargers, fuel pumps, injectors, ancillary items, performance modules, custom machine work and so much more. We pride ourselves on our customer service. If you need OEM quality parts without the OEM price tag, look no further than Area Diesel Service!